Nepal was once self-sufficient in food. A rising population and neglected agriculture mean that the country now imports most of its food from India.

But a small farm in a quiet suburb of Patan is cashing in on the huge demand for organic vegetables from the Indian states of Uttar Pradesh and Bihar. A locally developed variety of high-yield, wilt-resistant organic tomatoes called 'Shrijana' is one of the best-selling items.

Shrijana was developed over six years of research by a team led by Dr Kedar Budhathoki, a senior horticulturist at NARC (National Agricultural Research Council). He understood the tomato's potential, and after retirement set up a farm in Nakkhu to grow it in large-scale.

"I knew the only way to protect the breed was to market it commercially," explained Budhathoki during a tour of the farm last week. Budhathoki's company, Gorkha Seeds, now produces 50kg of tomato seeds every year and is striving to meet the huge demand from farmers who prize the breed for its high yield and disease resistance. Even under adverse conditions, a single Shrijana plant produces up to 15kg of tomatoes compared to just 2-3kg produced by local varieties. The tomatoes are larger, juicier and redder, which is why they command a premium in the Indian market. Shrijana can also be cultivated any time of the year throughout the country.

Budhathoki's farm, spread over four acres, made Rs 2.5 million last year by exporting 60 tonnes of tomatoes to India, excluding seed sales priced at Rs 90,000 per kg in the Nepali market. Gorkha also exported tomato seeds to Bangladesh and Sikkim last year, and orders have come in from Saudi Arabia as well.

Spurred on by his own success, Budhathoki is promoting Shrijana to Nepali farmers. The company is supporting 50 farmers' groups in and around Kathmandu to grow Shrijana by providing free seeds, fertilisers and training on cultivation techniques.

"The poor will always remain poor growing traditional crops. Farmers who have grown Shrijana on one ropani of land are earning Rs 124,000 every season. Moving to high-value crops is the only way to resolve the food crisis in Nepal," explains Budhathoki.

Retirement has not stopped Budhathoki from continuing with his research, and he recently launched nine varieties of heat-tolerant and disease-resistant tomatoes that can produce up to 30kg per plant.

He believes that with support and high-yield varieties, farmers' livelihoods can be transformed, and there is no reason for Nepal to be food-deficit or poor anymore. "If we can tell farmers about better breeds, cultivation techniques and new technologies, they can prosper," he says. "If the government can't do it, people like us should be involved."

Budhathoki plans to train farmers to export vegetables to India. Nepal produces vegetables during the off-season in India, so it is an ideal situation. Farmers are being trained in grading and weighing techniques and marketing produce to Indian purchasers.

Says Budhathoki: "We have the right climate, right soil, and hard-working farmers. The market is right next door in India."